Alert archive / Oklahoma / Flash Flood Warnings in 1990

Flash Flood Warning 27, NWS Norman, OK

May 2, 1990Jefferson County, Love County, Stephens County, Oklahoma

NWS Norman, OK issued this flash flood warning at May 2, 1990, 11:20 AM CDT for Jefferson County, Love County, Stephens County, Oklahoma. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
May 2, 1990, 11:20 AM CDT (16:20 UTC)
Expired
May 2, 1990, 5:15 PM CDT
In force
6 hr
Issued by
NWS Norman, OK
Area
Whole counties

Counties Jefferson County, OK, Love County, OK, Stephens County, OK

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 4.3 hours before the alert went out and 118 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 12:00Z on 1990-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 12:00Z on 1990-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 208 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
548 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
208 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 2, 6:00 AM CDT, 5 hours 20 minutes before
TXZ020-019-021200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
557 AM CDT WED MAY 2 1990

AT 445 AM WICHITA FALLS RADAR CONTINUED TO SHOW THUNDERSTORMS WITH
VERY HEAVY RAIN SCATTERED ACROSS THIS PORTION OF NORTH CENTRAL TEXAS.
HEAVIEST RAINS WERE OCCURRING FROM SEYMOUR SOUTHEAST TO NEAR NEWCASTLE
EAST TO JACKSBORO AND NORTHEAST TO BOWIE.

OTHER STRONG THUNDERSTORMS PRODUCING HEAVY RAINS WERE OCCURRING FROM
POSSUM KINGDOM LAKE SOUTHWEST TO BRECKENRIDGE TO NEAR ALBANY. STILL
YET ANOTHER STRONG THUNDERSTORM WAS NEAR VERNON. ALL PRECIPITATION
MOVING NORTHEAST AT 30 MPH.

BRIEF PERIODS OF HEAVY RAIN...FREQENT LIGHTNING AND GUSTY WINDS CAN BE
EXPECTED TODAY. SOME THU=NDERSTORMS COULD BE SEVERE LATER TODAY AS
WEATHER ELEMENTS COME TOGETHER.

STAY TUNED TO NOAA WEATHER RADIO OR NEWS MEDIA BROADCAST FOR LATER
STATEMENTS ON THIS WEATHER SITUATION.
Special weather statement, May 2, 6:42 AM CDT, 4 hours 38 minutes before
TXZ019-020-021245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
645 AM CDT WED MAY 2 1990

        ...VERY HEAVY RAINS MOVING INTO WICHITA FALLS...

AT 635 PM THE WICHITA FALLS RADAR SHOWED A LAGE AREA OF SHOWERS AND
THUNDERSTORMS...SOME PRODUCING VERY HEAVY RAINS BLANKETING MUCH OF
THIS PORTION OF NORTH TEXAS AND ADJACENT SOUTHERN OKLAHOMA.

THE STRONGEST THUNDERSTORMS WERE LOCATED ACROSS SOUTHERN WICHITA
AND NORTHERN ARCHER COUNTIES. THESE STORMS ARE PRODUCING TORRENTIAL
RAINS AND FREQUENT LIGHTNING AND COULD ALSO PRODUCE MINOR FLOODING
OF ROADWAYS AND LOW-LYING AREAS. EARLY MORNING COMMUTERS SHOULD
BE AWARE OF THIS SITUATION AND NOT DRIVE ACROSS WATER COVERED ROADS
OF UNKNOWN DEPTHS.

ELSEWHERE VERY HEAVY RAINS WERE SCATTERED OVER PORTIONS OF CLAY AND
SOUTHERN MONTAGUE COUNTIES. THESE HEAVY THUNDERSTORMS COULD CAUSE
FLOODING OF LOW-LYING AREAS.

STAYED TUNED TO NOAA WEATHER RADIO OR COMMERICAL WEATHER BRnOADCASTS
FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, May 2, 6:47 AM CDT, 4 hours 33 minutes before
TXZ019-020-021245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
645 AM CDT WED MAY 2 1990

        ...VERY HEAVY RAINS MOVING INTO WICHITA FALLS...

AT 635 PM THE WICHITA FALLS RADAR SHOWED A LARGE AREA OF SHOWERS AND
THUNDERSTORMS...SOME PRODUCING VERY HEAVY RAINS BLANKETING MUCH OF
THIS PORTION OF NORTH TEXAS AND ADJACENT SOUTHERN OKLAHOMA.

THE STRONGEST THUNDERSTORMS WERE LOCATED ACROSS SOUTHERN WICHITA
AND NORTHERN ARCHER COUNTIES. THESE STORMS ARE PRODUCING TORRENTIAL
RAINS AND FREQUENT LIGHTNING AND COULD ALSO PRODUCE MINOR FLOODING
OF ROADWAYS AND LOW-LYING AREAS. EARLY MORNING COMMUTERS SHOULD
BE AWARE OF THIS SITUATION AND NOT DRIVE ACROSS WATER COVERED ROADS
OF UNKNOWN DEPTHS.

ELSEWHERE VERY HEAVY RAINS WERE SCATTERED OVER PORTIONS OF CLAY AND
SOUTHERN MONTAGUE COUNTIES. THESE HEAVY THUNDERSTORMS COULD ALSO CAUSE
FLOODING OF LOW-LYING AREAS.

STAY TUNED TO NOAA WEATHER RADIO OR COMMERICAL WEATHEtR BROADCASTS
FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, May 2, 7:54 AM CDT, 3 hours 26 minutes before
TXZ019-020-021400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
745 AM CDT WED MAY 2 1990

AT 740 PM THE WICHITA FALLS RADAR SHOWED A LARGE AREA OF SHOWERS AND
THUNDERSTORMS...SOME PRODUCING VERY HEAVY RAINS BLANKETING MUCH OF
THIS PORTION OF NORTH TEXAS GENERALLY EAST OF CHILDRESS...SEYMOUR....
ABILENE LINE. THIS AREA OF PRECIPITATION ALSO BLANKETED MUCH OF THE
SOUTHWESTERN ONE THIRD OF OKLAHOMA.

MODERATE TO HEAVY RAINS WITHIN THIS AREA WERE FALLING OVER MUCH
OF ARCHER...CLAY...WICHITA...YOUNG...JACK AND MONTAGUE COUNTIES.
HEAVY RAINS FELL ACROSS MUCH OF THESE COUNTIES YESTERDAY. 24 HOUR
RAINFALL TOTALS BEING REPORTED INTO THE WEATHER SERVICE OFFICE
SO FAR THIS MORNING RANGE FROM 1.37 IN THE WESTERN PART OF WICHITA
FALLS TO 3.30 INCHES IN BOWIE.

EARLY MORNING COMMUTERS ACROSS THE REGION CAN EXPECT SOME FLOODING
OF ROADWAYS. DO NOT DRIVE INTO HIGH WATER OF UNKNOWN DEPTHS.
<
MOVEMENT OF THIS ENTIRE FIELD OF PRECIPITATION WAS RAPIDLY TO THE
NORTHEAST AT 40 MILES AN HOUR. AT THIS MOVEMENT...RAIN WILL BE ENDING
IN THE WICHITA FALLS HOUR DURING THE NEXT HOUR AND A HALF. HOWEVER
CONDITIONS ARE FAVORABLE FOR REDEVELOPMENT OF SHOWERS AND THUNDERSTORMS
SOME POSSIBLY SEVERE LATER TODAY.

STAY TUNED FOR ADDITIONAL STATEMENTS THROUGHOUT THE AFTERNOON.

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 2, 2:51 PM CDTFlash Flood WarningOUNCanadian, Kingfisher, Logan6 hr
May 2, 2:51 PM CDTFlash Flood WarningOUNComanche, Cotton6 hr
May 2, 2:51 PM CDTFlash Flood WarningOUNCaddo, Grady6 hr
May 2, 2:51 PM CDTFlash Flood WarningOUNLincoln, Payne6 hr
May 2, 4:53 PM CDTFlash Flood WarningOUNAtoka, Coal, Hughes, Johnston, Pontotoc7 hr
May 2, 4:53 PM CDTFlash Flood WarningOUNCarter, Garvin, Grady, McClain, Murray, Stephens7 hr
May 2, 4:53 PM CDTFlash Flood WarningOUNCanadian, Kingfisher, Lincoln, Logan, Oklahoma, Payne7 hr
May 2, 4:53 PM CDTFlash Flood WarningOUNComanche, Cotton, Jefferson7 hr
May 2, 4:53 PM CDTFlash Flood WarningOUNCleveland, Pottawatomie7 hr
May 2, 4:53 PM CDTFlash Flood WarningOUNCaddo7 hr
May 2, 4:53 PM CDTFlash Flood WarningOUNBryan, Love, Marshall7 hr

Nearby

Flash Flood Warnings in Oklahoma, 1990Every flash flood warning in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.